Merge with Linux 2.4.2.

1 files changed, 13 insertions, 6 deletions

diff --git a/arch/mips/mm/extable.c b/arch/mips/mm/extable.c
index bc7cb7ab9..72d4c9040 100644
--- a/arch/mips/mm/extable.c
+++ b/arch/mips/mm/extable.c
@@ -3,6 +3,7 @@
  */
 #include <linux/config.h>
 #include <linux/module.h>
+#include <linux/spinlock.h>
 #include <asm/uaccess.h>
 
 extern const struct exception_table_entry __start___ex_table[];
@@ -29,26 +30,32 @@ search_one_table(const struct exception_table_entry *first,
 	return 0;
 }
 
+extern spinlock_t modlist_lock;
+
 unsigned long
 search_exception_table(unsigned long addr)
 {
-	unsigned long ret;
-
+	unsigned long ret = 0;
+	unsigned long flags;
+	
 #ifndef CONFIG_MODULES
 	/* There is only the kernel to search.  */
 	ret = search_one_table(__start___ex_table, __stop___ex_table-1, addr);
-	if (ret) return ret;
+	return ret;
 #else
 	/* The kernel is the last "module" -- no need to treat it special.  */
 	struct module *mp;
+
+	spin_lock_irqsave(&modlist_lock, flags);
 	for (mp = module_list; mp != NULL; mp = mp->next) {
 		if (mp->ex_table_start == NULL)
 			continue;
 		ret = search_one_table(mp->ex_table_start,
 				       mp->ex_table_end - 1, addr);
-		if (ret) return ret;
+		if (ret)
+			break;
 	}
+	spin_unlock_irqrestore(&modlist_lock, flags);
+	return ret;
 #endif
-
-	return 0;
 }